I've been a fan of Ask A Ninja for a while now, as are many other people, but I just had to post today's episode on here. It's about a subject close to my heart: randomness! With all the fun that entails.
These days spam bots are a problem for websites. They post crap in comments and ruin things for everybody. However asking them to perform tests such as identifying badgers stops them in their tracks, despite how easy it is for you.